Affiliations: Department of Pediatric Neurology, Clarendon Wing
Leeds General Infirmary, Leeds, UK
Note: [] Correspondence: Dr. John H. Livingston, Department of Pediatric
Neurology, Clarendon Wing, Leeds General Infirmary, Leeds LS29NS, UK. Tel.: +44
113 3926903; Fax: +44 113 3925731; E-mail: Jh.livingston@leedsth.nhs.uk